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- cmake_minimum_required(VERSION 3.8)
- project(CheckIPOSupported-CXX LANGUAGES CXX)
- cmake_policy(SET CMP0069 NEW)
- include(CheckIPOSupported)
- check_ipo_supported(RESULT ipo_supported OUTPUT ipo_output)
- if(ipo_supported)
- set(CMAKE_INTERPROCEDURAL_OPTIMIZATION TRUE)
- elseif(CMake_TEST_IPO_WORKS_CXX)
- string(REPLACE "\n" "\n " ipo_output "${ipo_output}")
- message(FATAL_ERROR "IPO expected to work, but the check failed:\n ${ipo_output}")
- endif()
- add_library(foo foo.cpp)
- add_executable(CheckIPOSupported-CXX main.cpp)
- target_link_libraries(CheckIPOSupported-CXX PUBLIC foo)
- enable_testing()
- add_test(NAME CheckIPOSupported-CXX COMMAND CheckIPOSupported-CXX)
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